15. Which annulene would you not expect to be aromatic? (A) [6]Annulene (B) [14]Annulene (C) [16]Annulene (D) [18]Annulene (E) [22]Annulene

3. Why is sodium methoxide not used in the Claisen condensation of ethyl acetate? (A) The methoxide is a weaker base than the ethoxide which is used. (B) sodium methoxide is more difficult to prepare than sodium ethoxide. (C) The methoxide would abstract a proton from the ethyl group of the ester. (D) Use of sodium methoxide would result in transesterification. (E) sodium methoxide can be used as well as sodium ethoxide.

15. Which annulene would you not expect to be aromatic?
(A) [6]Annulene
(B) [14]Annulene
(C) [16]Annulene
(D) [18]Annulene
(E) [22]Annulene

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